| article html file updated | 5 February 2020 23:09 CET | Update | https://www.mdpi.com/2076-3425/2/4/684 |
| article html file updated | 8 May 2019 11:45 CEST | Update | N/A |
| article html file updated | 20 March 2019 15:21 CET | Update | N/A |
| article html file updated | 17 June 2015 04:20 CEST | Update | N/A |
| article html file updated | 20 May 2014 08:33 CEST | Update | N/A |
| article xml file uploaded | 20 May 2014 08:33 CEST | Original file | https://www.mdpi.com/2076-3425/2/4/684/xml |
| article html file updated | 7 February 2013 17:00 CET | Update | N/A |
| article html file updated | 24 January 2013 09:38 CET | Original file | N/A |
